Grass Wood, an ancient woodland site in Yorkshire managed by the Yorkshire Wildlife Trust, hosted a wood warbler that drew the author to a limestone pavement where the clints and grikes were thickly covered in moss, ash seedlings, ferns, sedges, dog’s mercury, and flowering herb paris, accompanied by a dense insect hum. The author notes that the plant-covered state of this pavement contrasts with the barren appearance typical of such landforms when subjected to prolonged sheep overgrazing.